code: def make_subgraph(subg, *args):
      js = subg.tojson()
      return subg
  
file_path: mxnet/tests/python/unittest/test_subgraph.py
imports: from __future__ import print_function
  import numpy
  import mxnet
  import copy
  from mxnet.test_utils import *
  import pytest
  from mxnet.gluon.model_zoo.vision import get_model
label_desc: Use image node_id 1 for calling a global function with example usage: make_subgraph(subg) and returns: subg